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What is sinus tachycardia?

Sinus tachycardia is a rapid heart rate with a normal rhythm, meaning that your heart continues to beat at normal intervals, just faster than normal. This happens in certain diseases but also in response to normal events and activities like exercise, stress and fear.
Sinus tachycardia is a common heart-rhythm disturbance, or arrhythmia, that rarely requires treatment. Sinus tachycardia is a normal, harmless elevation in the heart rate because of exercise, excitement, or fever.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.